1. Department of Hematology, Aalborg University Hospital, Aalborg, Denmark;
2. Department of Clinical Medicine, Aalborg University, Aalborg, Denmark;
3. Division of Clinical Epidemiology, Department of Medicine Solna, Karolinska Institutet, Solna, Sweden;
4. Department of Immunology, Genetics and Pathology, Clinical and Experimental Oncology, Uppsala University and Uppsala Akademiska Hospital, Uppsala, Sweden;
5. Hematology Center, Karolinska University Hospital, Solna, Sweden